10506215465 has 4 divisors (see below), whose sum is σ = 12607458564. Its totient is φ = 8404972368.

The previous prime is 10506215449. The next prime is 10506215483. The reversal of 10506215465 is 56451260501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4092928576 + 6413286889 = 63976^2 + 80083^2 .

It is a cyclic number.

It is not a de Polignac number, because 10506215465 - 2⁴ = 10506215449 is a prime.

It is a super-2 number, since 2×10506215465² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050621542 + ... + 1050621551.

It is an arithmetic number, because the mean of its divisors is an integer number (3151864641).

Almost surely, 2^10506215465 is an apocalyptic number.

It is an amenable number.

10506215465 is a deficient number, since it is larger than the sum of its proper divisors (2101243099).

10506215465 is an equidigital number, since it uses as much as digits as its factorization.

10506215465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101243098.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 10506215465 its reverse (56451260501), we get a palindrome (66957475966).

The spelling of 10506215465 in words is "ten billion, five hundred six million, two hundred fifteen thousand, four hundred sixty-five".